both president obama and mitt romney are expected to speak with prime minister benjamin netanyahu, following the leader's impassioned plea for action against iran. netanyahu tried to make as clear as possible why he believes iran's nuclear program must be stopped sooner rather than later. >> a red line should be drawn right here. before, before iran completes the second stage of nuclear enrichment necessary to make a bomb. >> with me now, msnbc special correspondent, tom brokaw. you have seen a lot of u.n. speeches. >> jon stewart teed it up saying it looks like a wiley coyote cartoon. this is a serious issue. seems the way the prime minister presented it before the united nations. >> had an american president did something like this, what would the reaction be? i am sort of shell shocked. >> take the two candidates, think about what they would have said if president obama had done something like that. >> george w. bush. >> from the right or george w. bush, or if mitt romney made a speech and held up that kind of a bomb and drew the line. it boggles the mind. these are serious issues. they a